honeywell controller UDC 2500

[J.A.C]

Hi Sal,

Here is a link that can also help you go ahead in the process.  It contains some of my doubts that i had when interfacing the UDC 3300 using Rs-485 to the PC.

http://forums.ni.com/ni/board/message?board.id=170&message.id=129994&requireLogin=False

Hope this helps.

J.A.C

[bjlv]

Hi SAL:
You asked where the numbers in the string "11,4204,E4,18,120,7D" came from.  They were all in the manual, and they are:

address=11
code meaning use a chcksum=4204
code meaning monitor read configuration=E4
response should be in 'Oxford floating point' format=18
code for PV=120
checksum calculated from the above (subVI was in my set)=7D

  I hope this explains what I was doing.
Bart

[jknight_ve]

hi , im trying to communicate with a UDC 3000 , i will going to do my test the next week , but i want to know when i receive the data let's say for example : 00004C,120 ,250,CS and i want to display the value of the PV (250) in a numeric indicator how can i do that?
Regards Tomás Estrada

[chris_amadasun]

Hello please take a look at the attached vi
note: this written was written in LabVIEW 8.5 please let me know if you need an earlier version

[jknight_ve]

hi Christian i have the labview 8.0 so if you could get that example in that version would be very helpful
Tomás Estrada

[chris_amadasun]

Hello Tomas,
I have attached the file for LabVIEW 8.0 for you.

[jknight_ve]

hi there , im trying to communicate with a UDC 3000 but a get no response from the controller , and i test mi program and he send and receives data , i have the next configuration in the controller

half duplex , 9600 Baud, comstate = Rs 422/485 , Shed = 30, tx delay = 2 , im not using a balck box converter im using a normal conventer Rs 422/485 to Rs 232, i need help please

Tomás Estrada

[jknight_ve]

hi i need help to know how to communicate with a UDC 3000 ( wich what i look in this forum some people made it and with UDC 3000 without using modbus, because the controller that im using doesn't support modbus)  so anyone can give some advices(wich configuration did you use to communicate baud, shed time, tx delay etc), I did my program and i tested, it sends and receives data but when i sent data to the controller i get no response, i don't know if a have to put some delay in the software to wait for the response and how much time could be, and using Half duplex configuration because i read that honeywell recommended that, i really need kind of a fast respond because im doing my internships and im running out of time to finish the software, appreciating all the help you could give me.

Tomás Estrada

[chris_amadasun]

Hello,
You will need to know the exact command to send in order to get a response from your device.
Have you looked at the example code found on page 1 of this discussion.
Also we encourage people to make a new forum post instead of attaching new questions to old posts.

Let us know if this helps.

[LV2P]

Hi

I am using Honeywell Controller UDC 3000 using Labview 7.1

using following interface UDC3000-SNA for 422 and to the PC so please give me suggestion regarding hardware and code devlopment. and i am using UDC LLB From discussion forum and their is error "Connection Failed:

So give me reply,,,,